根据相关的文化背景知识，选择正确答案。
【小题1】______ was invented in korea in 1998.  It is used for listening to music.

We’re going to set up a food bank to help hungry people.

He looks sad.  Let’s cheer him up.

The cakes in the restaurant _____, so they _____ well.

Our teacher told us to        the new words in the dictionary if we didn’t know them.

— Excuse me, sir. Would you please             the total cost of the trip?
— All right, I will make it at once.

Tom ______________ sending e-mails _____________ letters．because it is faster.

I___________ some clothes to charity because they are too small for me.

---Huangyan Island belongs to China.
---Surely it does! We Chinese will never__________it up.

---Will you go and see the movie Net Mother with me?
---Thank you. But I _________it already.